Square Rock is a dive site with spectacular walls and incredible marine life beneath the surface.

To the north of shark cave island is a small rocky outcrop called Square Rock that although tiny above water, expands below the surface. The wall drops vertically down to about 15m before sloping out to the sand at 28m deep. The reef walls are covered in soft coral and encrusting sponge plus sea fans and crinoids. Scorpionfish on the walls are huge in size. Banded pipefish are tiny. Moray eels are prolific. White tip reef sharks can be seen on the reef edges and under rocks.